[Flow] Failed to compile PHP files in directory next to Domain directory

[Rocky]

Hi,

I corrected all the typos. Below version of code works:

FlowDir/Packages/Application/Mycompany.Package/Classes/Mycompany/Package/. In the Utility folder I had Debug.php which reads likes below
<?php
namespace Mycompany\Package\Utility;

use TYPO3\Flow\Annotations as Flow;
class Debug { <=== "class" needs to be lower case
// My code here
static public function CuoWu() {
}
}

In one of my Controller files, I have below code:
\Mycompany\Package\Utility::CuoWu();